Range search

Another feature of the superconductivity effort has been that most has been devoted to detailed studies of existing materials rather than wide-ranging searches for new compositions. Substantially enhanced properties are necessary if high temperature superconductors are to have a major impact in the commercial sector. The assumption has been that detailed understanding will lead to improved superconductors. Usually, this has not occurred. The complexities of these underdetermined solid state systems restrict the ability to design improved structures. 

Once a restricted range that contains the optimum has been established, then restricted range search methods can be used. These can be broadly classified as direct methods that find the optimum by eliminating regions in which it does not lie, and indirect methods that find the optimum by making an approximate estimate of f x). 

In characteristic fashion, Ahhe made a wide-ranging search of the available optical literature, hut found nothing of help. After numerous visits to the Zeiss workshop, Ahhe came to the conclusion that the main problem with existing... 

Numerical Linear Small units (t. e. even large numbers have few digits) Small character set (10 digits) Exact or inexact match (e. g. range searching)... 

Carbohydrates gives the following physical characteristics of substances, when available appearance, melting point, boiling point, optical rotation, density, refractive index, solubility, p.Sra. All of these fields are searchable by numerical value (including range searching) in the CD-ROM version of Carbohydrates. 

On the CD-ROM, all the Aijiax values are indexed in the UV Maxima field and can be searched for numerically including range searching. Similarly, the solvent data associated with the UV data are indexed in the UV Solvent field. 

The property data allow very specific search possibilities, like numerical and numerical range searches the results may be used for statistical correlations. In this way unknown relations between different properties of compounds can be disclosed which may provide a basis for new experimental work. 

If you have entered only one S, the system asks for the L-number. Subsequently a substructure sample search is performed. Besides the sample and full search range and subset-searches are viable. A range search refers to CAS Accession Numbers. The choice of subset restricts the search to a set of results, where you wish to continue the search. Structure searches are executed in two steps (Sect. 7.2.2) ... 

Some of the aspects of structure browsing with the Lawson Number (LN) are described including limitations. Use of several LN in combination, single LN, and range-searching is demonstrated for the retrieval of various analogues, including positional isomers. 

Range-Searching with the LN. All nitrated and C-halogenated derivatives of any given structure can be found in the immediate vicinity of the LN, in the so-called... 

Range of 8 . This involves use of the LN in a range-searching mode. The range of 8 is defined by the following procedure ... 

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